taylor



7 Sheets-Sheet. 1.

(No Model.)

f I.H.TA YLOR. CAN SOLDERING MACHINE.

PatentedApr. 30,1895.

nocuior,

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7 l5heets-Sheet 2.

Patented Apr. 80, 1895.

(No Model.) 7 Sheets-Sheet 3.

I. H. TAYLOR CAN SOLDERING MACHINE. I

Patented Apr. 30, 1895.

[ mam M1lmmmlmw I (No Model.) v I 7 Sheds-Sheet 4.

' I. H. TAYLOR.-

GAN SOLDERING MACHINE. a No. 538,608. Patented Apr. 30, 1895.

7 Sheets t, 6.

E N m RM 0 M m A M L .0 IS N A G Patented Apr. 30, 1895.

m 55 EN 7 Sheets'-Sheet 7.

'(No Model.)

I. H. TAYLOR. CAN SOLDERING MACHINE.

,608. Patented Apr. 30, 1895.

manufacture of that class of cans which are V UNITED STATES PATENTOFFICE.

ISAIAH II. TAYLOR, OF BALTIMORE, MARYLAND, ASSIGNORBY DIRECT- AND MESNEASSIGNMENTS, TO THE HUGHES-TAYLOR CAN COMPANY OF BALTIMORE CITY, OF SAMEPLACE.

CAN- SOLDERING MACHINE.

:EPEGIFIATI-ON forming part of Letters Patent No. 538,608, dated April30, 1895.

Application filed May 28, 1 8 9 To all whom it may concern.-

Be it knownthat I, ISAIAH H. TAYLOR, of Baltimore, State ofMaryland,'have invented certain new and useful Improvements in Can-Soldering Machines, of which the following is a specification,,referencebeing had to the ac-' companying drawings.

The object of my invention is to produce a machine designed; forsoldering the side seams of sheet metal cans by the direct applicationof a flame, in which the operation of the machine is so timed astoreceive blanks to be soldered at proper intervals and to discharge thesoldered blanks when completed.

. My machine is especially adapted for the described in my Patent No.e83,660,-issued October 4, 1892, and, in the main, is animprovemerttupon' the subject matter of my Patent N0.';5l6,980, datedMarch 20, 1894;

" but its. use is notconfined to the manufacture Fig. II is a sideelevation thereof.

of the particular cans shown in the, former patent and, in somerespects, it'involves a radical departure from the machine shown inthe-latter parent. a

In the accompanying drawings Figure I is a top plan viewof my machinecomplete. Fig. III is a central vertical section of my machine. Fig.IVIIS a section on'- the line 44 of Fig. III, the parts being shown infull. Fig. V is a similar section on the line 5 5 of Fig. III. Fig. V1is a central longitudinal section of a down-flume-burner. Fig. VII is asimilar view of an end-fiame-b'urner. Fig. VIII is a top plan view ofthe cam-wheel. Fig. IX is a section on the line 9 9 of Fig. VIII. Fig. Xis a section on the line 10 of Fig. VIII. Fig. XI is abottom plan viewof the preferred form of gripper. Fig. XII is a section on the line 1212 of Fig. XI. Fig. XIII is a longitudinal section of one of, thesolder'box'arms and supports with the box in-place. Fig. XIV is a bottomplan view of one of the solder-boxes, Fig. XV is a central longitudinalsection of a modified form of solder-box. 'Fig. XVI is an outside endelevation of the solder-feeding, mechanism. Fi r. XVII is an inside viewthereof. Fig-.XVI II is a detail section showing the take-up techanismof one of the Serial No. 612.718. (No model-l solder-feed wheels. Fig.XIX is a longitudinal section of the solder-feeding mechanism, showingthe arrangement of the feed-wheels. Fig. XX is a'transverse section ofthe tluxer.

Fig. XXI is a longitudinal section thereof.

Fig. XXII is' a longitudinal section of a moditied form ofsolder-feeding mechanism, showing; asolder-hopperand slit in connectionwith thelon ritudinally-grooved roller. Fig. XXIII is a. cross-sectionthereof.

Referring to the figures on the drawings, 1 indicates a fixed table orbed plate that is supported as by legs'2, designed to be cured to afloor. 3 indicates a central vertical shaftwhich is preferably madehollow for the accommodation of down flame burners,

such as are shown in my Patent l\'o. 5l6,$l8t

for example, but which, inasmuch as they are not involvedin the presentinvention, are not illustrated as attached to the machine proper.

4 indicates a hollow shaft upon which loosely turns a beveled gear wheel5 neat-its lower end and to which near its upper end is secured a camdisk 6. An abutment screw 7 serves to secure the camdisk to the shaftat, and a collar 8 supports the gear 5 loosely thereon. gear 5 by-mieansof a pinion 9 meshing therewith. The pinion is securely fixed to the endof a horizontal shaft 10 that is carried in a hanger 11 secured, as bybolts 12 to the bottom of the bed plate 1. Upon its outer end the shaft10 carries, a loose pulley l3 and a fixed pulley '14. Around the shaft 4a hollow shaft 15 is'revolubly carried. It is supported partially by thegear wheel 5 against which it abuts, and bya notched wheel 16 that. issecured, as by an abutment screw 17, to. it and which is supported, asby its collar IS, upon-the surface of the bed plate I. To the same shaft15 below the bedplate is fixed, as by an abutn'ientscrew 19.21. ratchetwheel 20 and above the notched wheel It as by a set screw 21, is securedto it a revolving circular table .22.

'Ihe-drivim, power of the machine is supplied from the shaft-10 which,through the pinion 9, imparts a constant motion to the gear The table 22isiutcrmittcntlvdriven Rotary motion is imparted to the from the samesource of power; and the ratchet and the notched wheel 16 are designedto convert the constant motion of the gear 5 into a regular step by stepmotion in the table 22.

This bject may be accomplishedby the employm. nt of a curved armprovided with a sleeve 24 that may be made integral therewith, thesleeve acting as a broad bearing for the arm around a vertical stud 25depending from the bottom of the bed plate.

Anut 26 serves to support the sleeve upon the stud. r

The arm 23 carries upon its free end a pawl 28 pivoted. as indicated at29, to the arm and having a tail piece 30 that engages with and isactuated by a spring-driven plunger 31, working in a socket 32, in theperiphery of the arm. A spring 33 secured at one end to a collar 34,depending from the bed plate 1, and at the other end to a stud pin 35upon the arm 23 tends to keep the pawl 28 in engagement with the notch36 of the ratchet wheel'20. Under the actuation of the spring 33, thearm 23 would be. drawn into contact with the peripheny of the ratchetwheel, except that it is supported upon a roller 37 retatably secured,as by a nut 38, to the reduced end of a stud bolt 39, depending f om thebottom of the arm 23. The roller 37 rides upon a boss 40 of the gear 5.centrically into a cam 41. (See Iyfigs. VIII, IX and X.) There are threecams upon the boss, of which the cam 41 is the uppermost.

When, in the revolution of the gear 5-, the cam 41 strikes the roller37, it swings the arm 22% upon its pivot. 25, and imparts apredetermined degree of rotation to the ratchet wheel 20. The .arm 23,under the action of the spring 33 following in its motion the curvatureof the cam, and having advanced the ratchet 20 a distance of one notch,slips its pawl 28 into engagement with the next notch,

and is ready to repeat its operation of advancing the ratchet wheel withthe next rotation of the cam 41. The table 22 is provided around itsperiphery with a series of can grippers 42. The number of grippers.employed and the consequent capacity of the machine is determinable bythe diameter of the table, but is equal in number to the number ofratchets 36 on the ratchet wheel 20. \Vhen, therefore, the arm 23, byits pawl 28, rotates the ratchet, 20 the distance of a ratchet tooth, itimparts a similar degree of rotation to the table and advances eachgripper one step. This may be clearly understood by reference to Fig.III of the drawings, in which the connection of the ratchet wheel andthe table to the shaft 15 is clearly shown. It. is not suliicient,however, that the table should be ad vanced step by step, but it isnecessary to exactly dcline the degree of rotation llllparted each timeto the table, and thereby lo cate with each operation the exact positionof each gripper. To accomplish this purpos I employ detaining andreleasing mechanism which preferably consists, in combination The bossswells ec-' with the notched wheel 16, 01: a dog 43 that is fixed, as bya screw bolt 44, to a vertical shaft;

45. Th1 shaft 45 is surrounded by a sleeve 46 and carries, near itsextremity, an anti-trio 7 tion roller 49. This roller is of suchthickness and isso located, with respect to the boss, that it escapesengagement with the cam 41 on the boss, but is actuated by a middle cam50 also carried on the boss. (Com pare Figs. VIII, IX and X with Fig.II.) The cam 50 should be located with respect to' the cam 41- so as toactuate the arm 43 a little in advance of the actuation of the arm 23,whereof the reason becomes apparent, by reference to Fig.

:IV, in which it appears that the nib 51 of the.

dog 43 engages with a notch 52 of the notched wheel 16 and that beforethe wheel 16 can move the dog must release it by the actuation of theeam'50, in the manner above described."

The dog is held normally in engagement with a notch of the wheel 16, asby a spring 53 secured at one end to a stud pin 54, on the arm 48 and atthe other end to an eyelet 55 on the collar 34. In orderto insure theengagement of the nib 51 of the dog successively with the notches 52, Iprovide on the outer edge of the dog a curved surface 56 and a curvedcorner 57 in each notch, so that as the tapered nib approaches the notchit enters it with certainty and, under theactuation of the spring 53,Wedges itself into the notch and holds the wheel 16 rigidly fixed.

To insure even greater rigidity of movement, a metallic brake strap 58secured, as by screws 59, to uprights 60 and actuated by a screw 61screwing into a lug 62 that projects from the bed plate -'nay beemployed. The

grippers 42 are designed specially togrip the inturned edges of a can soas to expose an unobstructed surface to be soldered, but my invention isnot confined exclusively to that form of gripper, the machine beingadapted to actuate dilt'erent forms and varieties of grippers. The formwhich is preferred, however, consists of two semi-cylindrical parts 64and-65 hinged to a fixed shaft 66 that is rigidly secured to an endplate (37 which is supported by a bracket arm 68 secured, as by bolts6.), to the table 22. The two parts are kept; normally closed by a s)ring 70 (see Fig. XI) coiled around the shaft (36 and having projectingends 71 and 72 which bear against the edges of the gripper halves andkeep them turned toward each other upon the shaft ($6. The half 65 isprovided with a trip arm 7.; that carries upon its end an anti-frictionroller 74. The antifriction roller is designed to automatically open thegripper by't'he rotation of the table 22. "lhis object is accomplishedby providing a tripping table 75 carried by the studs 71; secured to asupporting plate 77 thatis bolted to the dog 4 5. The

manner in which the tripping table operates combustion chamber.

ssaecs to open the grippers-is clearly shown in'Fig. II of the drawings.It is While the trip arm 73 is lifted by the tripping table 75 that thesoldered cans may be removed successively and new blanks fed into place.

The manner of operation of the grippers and the construction thereof aresimilar to the corresponding features shown in my Patout No. 516,980,the distinguishing feature being, however, that the grippers areprovided with an openlongitudinal bore or heating chamber 78 into'whicha flame may be projected for melting the solder between the seam definedin the blank by the clamping edges of the grippers. For this purpose Iprefer to provide end flame burners, as illustrated in combination inFigs LILIII of the drawings and i rdetail in Fig. VII thereof. These mayrespectively consist of a combustion chamber 80 provided with airsupplyports 81 and adapted to discharge its flame endwise from the combustionchamber. Aplug 82 closes and defines one end of thecombustion chamberand within that a needle valve 83 of ordinary construction may beemployed.

84 indicates fuel supply pipes which communicate through ducts 85 and 80with the The end fiame burners are preferably three in number and arelocated so as to discharge directly into the ends of the gripperssuccessively, as soon as they are supplied with the flux and solder. Aplurality of burners is employed in order to thoroughly heat thegrippers and cause the solder to "flow into the seam ofthe blankconfinedthereby.

While it is practicable to employ the special form of grippers abovedescribed in combination with end flame burners yet I have also devisedpractical means of using a down flame burner designed where employed,tobe located similarly to the end flame burners .illustratethbutdischarging from abovea flame downwardly against the top of the canblanks contained in'the grippers.

In Fig. VI of the drawings a suitable down [lame burner is illustrated,and inasmuch as the down flame burners are clearly shown ip my PatentNo. 516,980 and as they are merely intended to supply the place, of endflame burners, it is thought that the detailed illustration shown inthat figure is sufficient for the purposes of this description. In thatfigure a gas cylinder 88 closed at. both ends, as illustrated, and anaircylinder 89,also closed at both ends, both cylinders being closed andunited at one end, as by a union cap 00, are

employed. An air pipe 91 passing through an air tight joint. 92 in thegas cylinder communicates with the interior of the air cylinder and agas pipe 93 communicates with the interior of the gas cylinder. In thelower w alls of'the-gas cylinder and air cylinder, re-

' spectively, a line of perforations Qt and 95 are located,'preferablyopposite to each-other. The line of perforations in the gas cylindershould be foo-extensive in length with the seam of the blank that isheld by the gripper to be thereby adapted to discharge a dame directlyagainst the entire length of'th'e seam to be soldered. 4

Great practical diificulty in can manufacture has been heretoforeexperienced in cans ing solder melted by a dame to'flow into-and tillthe joint to besolderd. By myinve liion I have entirely overcome thisdifficulty by making provision for the passage it all the flame throughthe box which holds he solder, so as to entirely envelop the solder andto serve to heat all the parts, including the can seam itself, by thedirect action of the flame.

Referring to Figs. XIII and XIV for the details of construction, 98indicates a solder boat which is preferably provided upon its upper.side with a trough-shaped recess 99 designed to discharge through alongitudinal. slit 100 in the bottom of the box; This slit should becoextensive with the length ot the can seam to be soldered, and isbounded longitudinally upon opposite sides by ribs 101 extending fromthe bottom of the box. The.

ribs are separated by eqni-dista'nt grooves 102 and each segment thereofis also pierced by an aperture 103 extending into the interior of thebox. 'TilGfiIlGlIlll'BS 103 may, however,be omitted, as shown in Fig. XVof the drawings.

In practice a strip'of solderwire 'ot'suitable. length is-droppedmechanically,or otherwise,

into the trough 99. The downwardly directed flame completely fills thetrough and envelops the. solder, its passage through the solder boxbeing permitted through the slit 100, the

- grooves 102 and the apertures 103 (if they are employed) thereby atthe same time suffi ciently heating the box and the seam to be joined.By this means the solder is flowed into the seam upon a hbt surface anda smooth joint is produced. It is necessary to make the box ot'amaterial which will not tin and I have -found aluminum to be especiallyadapted for this purpose.

- In order to bring the flame as it passes through the box into closecontact with the seam to be soldered it is necessary that while thesolder is being melted the bottom of the box should lie against the seamto be soldered,

but it is also desirable that the contact bef tween the box and theseam, should only-ex ist while the solder is beiugimelted. On thisaccount I em ploy a box carrier 104, pivotally supportedas indicated at105 upon a bracketarm 106 secured to the table, as by a screw bolt 107.The carrier isjbifurcated, as indi--.

cated at 108, at one end, and carries between its legs as upon pivots109, the box. By reason of its pivotal union with the carrier, the

box, when the carrier is turned upon-its pivot 105 toward the gripper,lies flat against the surface thereofiriotwithstanding any inequal. i-

ties that may exist in'the surface of the can blank held between thegrippers. A stop plate 110 pivot-ally secured, as bya screw 11.1

passing through a slot 112 therein into the carrier, may prevent thetilting of thebox. it

.XVIll) anda nut 1' spring 14-5, the plate 1 serves to regulate thespring 113 coiled around a stud pin 114,

screwed into the table 22 and passing through upon its inner end with ananti-friction roller 117 designed to ride against the cam surface 116.

I prefer to provide mechanical means for feeding the solder in suitablelengths to they solder box and for this'purpose may employ solderfeeding and cutting mechanism, as is clearly shown in combination inFigs. I and II and in detail in Figs. XVI, XV II, XVIII I and XIX, in,which- 117 indicates the body. of my cutter and feeder supported as uponan arm 118 secured, as by bolts 119, to the bottom of the bed plate 1.It carries, in suitable hearings, in a side arm 120, a shaft 121 whichhas a continuous motion and to which is secured a sprocket wheel 122that is geared, as by a chain 123, to a sprocket wheel 121 secured tothe constantly revolving shaft 10. To the shaft 121 a beveled gear 125is fastened that gears with a beveled gear 126 that is fastened to afeed driving shaft127 carried in suitable bearings 128 in. the body ofthe cutter and feeder. \Vithin'a recess 129 a grooved feed roller 130revolves, the feed roller being secured to the shaft 127.

131 indicates a lower feed shaft which is geared to the shaft 127 as bygear wheels 132, and 133. To the shaft 131,within the recess 120, alower grooved feed roller 134 is secured.

135 indicates a guide plate and 136 an aperturc opposite the juncture ofthe grooves in the rollers 130 and 131. The aperture 136 is designed toevenly feed a continuous strand of wire solder 137 from a spool orbobbin 138 carried upon pin. 139 that projects upwardly from an arm 14.0extending from the bottom of the body 117. To keep the grooved rollersin proper feedin relation to each other, I pro vide suitable te 'Jllregulating mechanism which may con of a movable block 141 which-supportsthe shaft 131 Within the bearingsin the body A tail piece 142 bent atright angles to the plate 141 prevents the plate from. turning. A. pin143 (see Fig.

the aid of a coiled u piriition.

The adjustment the not upon the pin ,nsioii of the spring yieldinglysustains,

...and the upward. press re of the plate 1 11 against the shaft 131. r.bearing plate 146 secured as by screws 1 17 to the bottom of the the endthereof body 117 may serve to ad'ord a more complete bearing 148 for theshaft 131.

l-4=9"indicates a discharge orifice throng which the wire 137 is .fedtoward the gripper 70 above the solder box 98, the orifice being solocated that each gripper will come to a stop successively in frontof itwhile'the machine is in operation. When a sufficient quantity of wirehas been fed out through the orifice -75 149, a properly timed cutterseversit and drops it into the solder box beneath. For this purpose Iprovide a knife 150, having a broad rectangular edge, pivoted to thebody.

as .bya screw 151 and-terminating in acurved '80 end 152 which, by aspring 153 secured to the body part, as'by a screw 151 at one 'end, andhearing at the other end against a pin 155 is held in contact with thecam 156 of a -wheel 157 the wheel being preferably provided with 8 5 anouter-guide rim 158. The zvheel'l57 is secured to a shaft 159. carriedin suitable bearings in a-bracket 160 on one side of the body 117. Theshaft is driven by a beveledgear 161 which meshes with a gear 162 thatis se- 90 cured to the shaft 127. The force of the 1 spring 153,although sufficient to keep the end 7 152 of the knife in engagementwith the cam 156, is counter-acted by'a spring 163 secured to the faceof the body 117, as bya screw 164, 5 and bearing against the broadrectangular bottom of the knife. The spring 163 serves -to cushion theknife and diminish the force with which it strikes the limiting pin 165.The wheel 157 is timed so as to severthe I00 solder in proper lengths.

Although the cutting and feeding mechanism just described is found, inpractice, .to be amply suificient for the purpose, yet, if preferred,the modified form of feeder shown in 3105 Figs. XXII and XXIII may beemployed. In these, figures 166 indicates a dropper having a feed slit167 of a required length to hold the lengths of solder necessary and ofa width I toeasily admit the'passageof strips of solder. Ho The slit 167diverges at its upper end into a hopper 168 into which the lengths ofsolder may be fed either mechanically or manually.

The lower end of the slit is coincident with a longitudinal groove 169in the p'eriphery'of a feed roller 170'. The feedrollcr is carried uponjournals 171 in bearings 172 in the dropper and is designed to berotated by suitable nicchanism (not illustrated). Each time the rollermakes a complete revolution it slips a piece of solder and drops it intothe solder box above which, in practice, the dropper is located. A brakeplate 173 may be,

used tori-enduring the movement of the roller steady and regular.

My preferred form of limiting mechanism consists of a reservoir 174provided with a bottom plate .175 within which is longitudin allyarranged a row of perforations 176 suhstantially coextensive in lengthwith the :30 seam to be soldered.

177 indicates bearing plates within aperturcs 178 in which arelongitudinally movable feed rods 179, one rod being provided for each ofthe apertures 178. The feed rods ate preferably provided with conicaltips 180 which fit into the inversely conical sock ts 181.in the bottomplate 175. The socket .;oincide with the apertures 176 into which, ineffect, their sides converge. By raising and lowering the feed rods 179a liquid flux conbe soldered.

' lower the feed rods and thereby produce the Y feeding operation of theflux.

The reservoir 174- may be supported upon a bracket arm 187 that isbolted to the bottom of the bed plate 1 and with this arrangement theend of the rock shaft may be provided with a trip lever 18S,counter-weighted at. 189 so as to keep the feed rods normally closed.The opposite end of the rod is curved slightly, as indicated at 190 andprojects in the path of an eccentric pin'191 carried on a wheel 192 thatis secured to the shaft159 within a recess 193. By this arrangement,with each revolution of the wheel 192, the pin 191 imparts a slightmovement to the trip lever 18S sufiicient to actuate the rock shaft185and thereby raise the feed rods 179 for the emission of a modicum offlux,

In addition to the mechanism above described for producing a can seam, Iprefer to employ mechanical automatic can discharging mechanism. Forthis purpose, I employ a kicker 194 which is designed to automaticallythrow off a completed can when the gripper is open upon reaching thetripping table 75. This kicker may have access behind the can throughrecesses 195 and 106 in the tripping table and supporting plate 77,respectivcly, and is preferably pivoted, as indicated at 197, to apendent. arm 108 secured, as by bolts 199, to the bottom of the bedplate 1. Thekicker actuating mechanism timed to discharge cans at properintervals, may consist of a kicker trip arm 20!) loosely pivoted, as bya collar 301, to the end of. the shaft 45, upon which it is supported,as by a set collar202, secured by an abutment screw 203, to the shaft.The kicker trip arm carries upon its free end an anti-friction roller201- that is urged toward the boss 10 and is actuated at regularintervals by the can: 205 whirl: is the lowest one upon that boss. itmay imubsurvcil that; the roller 20% is located just beneath therollcrl.) so as to escape actuation by any bu 1' its proper its free endan angular trip bar 206 which moves with a connectingarm' 207 pivoted,as indicated at 208, to a pitman 209, that is pivoted in turn at 210 tothe kicker. At 211 the connecting arm is pivoted to a supporting arm 212that is fixed by a set screw 213 to the shaft 4:. The supporting arm212'carries. a pendent stud 214 on its outer end to ,which,'at one end,a spring 215 is secured andis securedat the other end to one of the legs2 that support the bed plate 1. The action of the spring 215 ment of theconnecting arm 207 with thetrip bar206, to hold the roller 201 inengagement with the boss 40.

screw 217 carries a rod 218 which strikes at its freeend against the leg2.andaffords a stop piece to limit the novement of the stud 214 underthe actuation of the spring 215. \Vhat I claim is- 1. In a cansean'iiugmachine, theconilbi'uation with a table or frame, drivingmechan ism, and heating mechanism, of can conveying mechanism, includinghorizontal grippers adapted to grip and expose the side seams of a can,solder cutting and feeding mechanism connected with the drivingmechanism and timed to operate immediately before the cans are subjpctedby the conveying mechanism,

stantially as specified.

2. In a can seaming machine, the combination with a table or frame,driving mechanism, and step by step moving can blank conveyingmechanism, of grippers'on the can blank conveying mechanism adapted tocarry the can blanks, heating chambers within the grippers andstationary end ,fiame burners adapted to discharge atlame into theheating chambers of the grippers, substantially as specified:

3. In a can seaming machine, the combination with a table or frame, canconveying mechanism, heaters and driving mechanism, of grippers includedin the can conveying mechanism, gripper actuating mechanism, solderboxes above the grippers, and mechanism adapted to raise each solder boxsimulitaneously with the operation of the gripper actuating mechanism,substantially as set forth.

, 4. ,In a can seaming machine, the combination with a table or frame,driving. mechan-' ism including a wheeland cams thereon, of canconveyingm'echanism, intermittently act uatcd driving mechanism foroperatingthe can conveying mechanism, detaining androleasing mechanismand can discharging mechanism, all driven by the several cams of thewheel, substantially as set forth.

In a can seaming machine, the combina-. tion with a table or frame,movable table,

cam. The kicker trip arm curries also upon grippers and drivingmechanism, of solder A collar 216 secured to the shaft 4 by aset I tendsto hold the kicker normally within-the recesses 195 and 196, andlikewise, by engaget0 the action of the heating mechanism, subboxes foreach gripper-{respectively pivotally supported solder box carriers, anda cam disk adapted to actuate the solder box carriers, substantially asand for the purpose specified.

6. In a can seaming machine, the combination with a table or frame,revolving table, grippers and driving mechanism, of solder boxes,pivotally supported carriers yieldingly holding the solder boxes [11direct contact with the grippers, and acani disk adapted to operate thesolder box carriers, substantially as and for the purpose soc-:ifie

7. As a part of a soldering machine, asolder melting box provided with aslit extending entirely through its wall, and ribs on the bottom of thebox on each side of the slit, substantially as specified.

8. Asapart of asoldering machine,asolder box, a slittherein, ribs on thebottom thereof on each side of the slit, and transverse grooves in theribs, substantially as set forth.

9. Asa part ofa soldering machine, the combination with a solder box,slit therein, ribs on the bottom of the box on each side of the slit,and grooves and apertures in the ribs,

substantially as set forth. 10. Asapartofasolderingmachine,asolder boxprovided on one side with a trough, aslit therein, and ribs on thebottom of the box on each side of the slit, provided with air inlets,substantially as set forth.

11. As a part of a can soldering machine, the combination with a canblank retaining dcvice, of a solder box carrier and a solder one of theshafts adapted to regulate the ton 1 sion between the rollers,substantially as set forth. t

14. In can soldering machine solder feed mechanism, the combination withdriving mechanism and feed rollers, of a dropper and vslit. therein,and' a'longitudina-lly grooved roller in the end of the dropper underthe slit and connected with the driving mechanism, substantially as andfor the purpose specified.

15. In 'a'can seaming machine, the combi" nation with aframe, and meansfor holding a can blank thereon, heating chambers therein, of end flameburners locatedontside of but I in alignment with the heatingchambersand adapted to discharge a fiameinto the same, substantially asset forth.

In testimony of all. which I have hereunto subscribed my name. I

v ISAIAH ll. TAYLOR. \Vitnesses: F. D. BLACKISTONE, LOUIS G. JULIHU.

